B117 is more transmissible than original virus, but there is no evidence it makes people sicker
If a new virus sounds scary, a new mutating virus sounds scarier still. In Kent in September, scientists now believe, somebody with Covid was the unlucky first person to pass on a variant form of the coronavirus that is maybe as much as 70% more transmissible than the version we have been used to.
The exponential recent rise in cases now blamed on that incident and the UK government response have sparked alarm around the world, with other countries banning flights into the UK for at least 48 hours while everyone figures out what is going on.
